JPH0217647Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The present invention relates to a spray gun for applying a rust preventive agent that can spray the rust preventive agent forward and sideways and can apply the rust preventive agent uniformly. .

[Conventional technology]

For example, rust is likely to form on the inner surfaces of the front pillars, center pillars, and doors of automobiles, and on the inner surfaces of various appliances and devices that do not have painted surfaces, and especially in places that cannot be seen from the outside. Rust significantly reduces equipment life.

Therefore, in automobiles, etc., rust is prevented by using anti-rust steel plates, etc., but the anti-rust performance deteriorates due to aging in not only welded areas but also other areas. Therefore, it is necessary to apply the rust preventive agent again, and it is important to apply the rust preventive agent evenly and efficiently.

This anti-corrosion agent is usually applied on the inside of a door, for example, in a place that is hidden from view.
Drill a hole of about 20 mm and spray the rust preventive agent through the hole.

Conventionally, a spray gun for applying a rust preventive agent used for this purpose has a gun body A as shown schematically in FIG.
A nozzle B made of a metal tube with a slightly bent tip was provided, and a pumping device C for pumping rust preventive agent was connected to the gun body A.

[Problem that the invention attempts to solve]

Therefore, in the conventional type shown in FIG. 5, since the rust preventive agent is discharged only in one direction from the tip of the nozzle B, it is difficult to apply the rust preventive agent to the entire surface of a relatively narrow space that has a surface perpendicular to the discharge side, for example. In this case, the efficiency of the application work is poor, as the gun must be repeatedly turned over and inserted and removed. Also, since it is made of a metal tube, it is difficult to spray into intricate locations.

This invention can efficiently apply rust preventive agent to the front and side surfaces at the same time, improve operability, and achieve uniform spraying of the rust preventive agent, which solves the above problems. The purpose is to provide a spray gun for applying chemicals.

[Means for Solving the Problems] Hereinafter, one embodiment of the means of the present invention that can achieve the above-mentioned objects and solve the problems will be described with reference to the drawings.

In the figure, the spray gun 1 for applying rust preventive agent is
A flexible tube 4 is attached to the discharge port 3 of the gun body 2, and a main hole 6 communicating with the front and rear ends of the base body 5 is connected to the base body 5.
A nozzle fitting 9 is attached to the tip of the flexible tube 4 and has a plurality of sub-holes 7 opening in a groove 8 provided in the tube.

In this example, the gun body 2 has a piston shape with a handle 22 disposed at the rear end of the body 21, and the body 21 has a handle 22 below.
The handle 22 is provided with an air flow path 26 in which an on-off valve 24 and a metering valve 25 are interposed.

The air flow path 26 includes a guide hole 29 extending from the nipple 27 at the lower end of the handle 22, a side hole 30, and an oblique hole 3.
1 and a guide hole 32 extending through the center of the body 21. The on-off valve 24 is interposed in the side hole 30, and the on-off valve 24 is pulled by the trigger 33 to open the valve seat 34.
It is provided with a valve lever 35 for opening.

Further, in the metering valve 25, a valve body 39, which is close to the step 41 of the guide hole 32, is attached to a nut fitting 42 at the rear end via a valve shaft 43. Therefore, the nut fitting 4
By moving the valve body 39 closer to and away from the step 41 by advancing and retracting the screw 2, the air passing through the air flow path 26 can be adjusted.

In the guide hole 32, a relatively long large diameter hole 46 that opens at the tip of the body 21 is concentrically arranged, and an air nozzle is provided with an air discharge port 47 at the base of the hole. 49 are screwed together.

Further, in the body portion 21, a vertical hole 51 communicating with the hole portion 46 is bored in a downwardly protruding portion of the tip portion thereof.

A cap body 53 provided with an internal thread and a suction pipe 54 hanging downward and communicating with the vertical hole 51 are concentrically attached to the vertical hole 51 using a nut fitting 52. Note that the cap body 53 is prevented from rotating by a retaining pin 55.

A can 57 containing a rust preventive agent, through which the suction pipe 54 passes, is screwed onto the cap body 53. In this case, as the can 57, a commercially available can pre-filled with anti-corrosion agent is installed as is.

Therefore, the gun body 2 discharges high-pressure air flowing through the air flow path 26 from the air nozzle 49 by operating the trigger, and at this time, the rust preventive agent in the can 57 is sucked up through the pipe 54 and from the vertical hole 51. Atomization can be performed while suctioning, and therefore, the front portion of the hole 46 forms the discharge port 3 that discharges the rust preventive agent while atomizing it.

A hose joint 59 is screwed into the front end of the hole 46 , and the rear end of the flexible tube 4 made of synthetic resin and rubber is attached to the hose joint 59 . The nozzle fitting 9 is attached to the tip.

As shown in FIG. 3, the nozzle fitting 9 is constructed by providing a groove 8, which is a U-shaped notch in this embodiment, around the distal end of the base body 5 and extending slightly inwardly. A circular and thin blocking part 10 is provided at the front end of the connecting part 12 surrounding the inner surface of the 8, and an insertion part 11 is provided at the rear end. A locking portion 60 for attaching the pipe 4 is formed.

Further, the base body 5 is formed with, for example, one main hole 6 in the center thereof, which passes through the connecting portion 12 and communicates with the front and rear ends of the base body 5.

Further, in the insertion portion 11, a plurality of sub-holes 7, for example, six sub-holes 7, which extend from the rear end of the base body 5 and open at the groove portion 8, are formed concentrically and at equiangular pitches. In this example, the blocking part 10 is provided with two follower holes 13, 13 that are concentric with the sub-hole 7, which face each other across the center, and the nozzle fitting 9 flexibly holds the insertion part 11 as described above. Fits into the tube 4. Therefore, the main hole 6, the sub-hole 7, . . . communicate with the inside of the flexible tube 4.

[Effect]

However, as mentioned above, the rust preventive agent that is atomized and sprayed from the discharge port 3 by operating the trigger of the gun body 2 is
It passes through the flexible tube 4 and is discharged forward from the main hole 6 of the nozzle fitting 9. Further, the rust preventive agent from the sub-hole 7 that is not aligned with the sub-hole 13 flows into the groove 8, collides with the stopper 10, and is then diffused laterally. Further, the rust preventive agent discharged from the secondary hole 7 concentric with the secondary hole 13 is diffused as it is discharged, and a portion of it collides with the blocking portion 10 and flows out laterally from the groove portion 8, while the remaining portion is discharged from the secondary hole 1.
Discharge from 3 forward.

Note that the rust preventive agent passing through the flexible tube 4 can be atomized again by high-pressure air when being discharged from the nozzle fitting 9.

In addition, the nozzle fitting 9 and the flexible tube 4 have a relatively small diameter, so they can be inserted through the through hole provided in the above-mentioned car door, etc., and the flexible tube 4 can be bent, so it can be inserted into complicated or narrow places. It can be inserted relatively easily, and the rust preventive agent can be applied uniformly, preventing rust from forming on the device, increasing the rust prevention effect and extending the life of the device.

〔Example〕

In addition, in the spray gun for applying a rust preventive agent of the present invention, the slave hole 13 of the nozzle fitting 9 can be omitted, and the number of the subsidiary holes 7 can be freely set, and the base 5 can be used as the groove part 8. It is also possible to use one consisting of notched grooves provided on both sides. Also, the impact part 10
The inner surface facing the groove 8 can also be formed in the shape of a cone whose diameter increases toward the tip.

Further, the gun body 2 is not a trigger-type type, but an automatic gun-like type that opens and closes the on-off valve 24 by remote control may be used. It can also be formed as a water pressure can. Furthermore, the spray gun for applying a rust preventive agent according to the present invention can be modified in various ways, such as one using a pressure feeding device for the rust preventive agent instead of the can 57.

[Effect of idea]

As mentioned above, the spray gun for applying a rust preventive agent of the present invention has a flexible tube whose one end is connected to the gun body, and the other end of the flexible tube has a main hole and a groove portion opened at the front for applying the rust preventive agent. Since the nozzle fitting has a sub-hole that can spray rust preventive agent towards the front side, the rust preventive agent can be sprayed to the side as well as the front side of the nozzle fitting at the same time, resulting in uniform application of the rust preventive agent. In addition to being useful, since it includes a flexible tube, it can have many effects such as being able to efficiently apply rust preventive agent to relatively narrow spaces such as the inside of a car door, improving work efficiency.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing one embodiment of the present invention;
3 is a sectional view thereof, FIG. 4 is a bottom view thereof, and FIG. 5 is a diagram illustrating a conventional device. 2...Gun body, 3...Discharge port, 4...Flexible tube, 5...Base body, 6...Main hole, 7...Sub-hole, 8...
...Groove portion, 9...Nozzle fitting, 10...Blocking portion, 1
1...Insertion part, 12...Connection part, 13...Vertical hole.

Claims (1)

[Scope of utility model registration request] A bendable flexible tube is attached to the discharge port of the gun body, which can atomize the rust preventive agent and discharge it from the discharge port, and a groove is formed on the side surface, leaving a connecting portion, so that the front and rear of the connecting piece can be The main hole is formed in the insertion part and extends from the rear end of the base. A rust preventive coating comprising: a nozzle fitting having a plurality of sub-holes opening in a groove, and attached to the tip of the flexible tube with the rear ends of the main holes and sub-holes communicating with the interior of the flexible tube; Comes with a spray gun.